# Sprint 248 Execution Tracker - 2026-02-26

## Scope
- `sprint248_plan.md`

## Implemented

New tool:
- `tools/mcp/score_native_tasks_profile_coverage.py`
  - Scores any raw task set against active impact profiles.

Pipeline integration in `tools/mcp/run_sprint_taskitem_pipeline.sh`:
- Added controls:
  - `WSTONE_NATIVE_RAW_CANDIDATE_SEARCH` (default `0`)
  - `WSTONE_NATIVE_RAW_CANDIDATE_MAX_VARIANTS` (default `8`)
- Added raw candidate generation/scoring artifacts:
  - `02ae_candidate_<n>.json`
  - `02ae_candidate_<n>_tasks.json`
  - `02ae_candidate_<n>_score.json`
- Added summary packet:
  - `native_raw_candidate_search`

## A/B Validation (no overlays)

- candidate search OFF:
  - `logs/taskitem_runs/TEST_ONLY_sprint248_rawsearch_20260226_153902/00_summary.json`
- candidate search ON:
  - `logs/taskitem_runs/TEST_ONLY_sprint248_rawsearch_20260226_153903/00_summary.json`

Observed result:
- attempted variants: `8`
- selected variant: `0` (base)
- `failing_profile_count: 7 -> 7`
- no raw candidate uplift on this hard sample.

## Explicit Completion Signal

- Sprint 248: `DONE` (implemented + measured; no uplift on current sample)